Description

2,5-Dihydroxyterephthaloyl Chloride is a high-purity, functionalized aromatic acid chloride derivative. This compound serves as a critical building block in advanced organic synthesis, valued for its dual reactive sites that enable the formation of complex molecular architectures. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring terephthalate-based backbones.
• Polymer Chemistry: Monomer for the production of specialty polyesters, polyamides, and polyarylates with enhanced thermal stability and mechanical properties.
• Ligand Synthesis: Used to create sophisticated chelating agents and ligands for catalysis and metal-organic frameworks (MOFs).
• Agrochemicals: Intermediate in the development of novel herbicides and plant growth regulators.
• Dye & Pigment Manufacturing: Building block for high-performance organic dyes and pigments, especially phthalocyanine derivatives.
• Cross-linking Agent: Functions as a reactive cross-linker in resin and coating formulations to improve durability and chemical resistance.
• Academic & Industrial Research: Essential reagent for exploratory chemistry in material science and organic synthesis laboratories.

Basic Information

Item	Details
Product Name	2,5-Dihydroxyterephthaloyl Chloride
CAS No.	26239-59-8
Molecular Formula	C8H4Cl2O4
Molecular Weight	235.02 g/mol
Synonyms	2,5-Dihydroxyterephthalic Acid Dichloride; Terephthaloyl Chloride, 2,5-Dihydroxy-; 2,5-Dihydroxy-1,4-benzenedicarbonyl Chloride; 2,5-Dihydroxybenzene-1,4-dicarbonyl Chloride; 1,4-Bis(chlorocarbonyl)-2,5-dihydroxybenzene; DHTPC; 2,5-Dihydroxy-p-phthaloyl Dichloride
EINECS	Contact for details

Quality Control

Our 2,5-Dihydroxyterephthaloyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and degradation.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.